Luttinger liquid parameters from tensor network data
Strongly Correlated Electrons
2020-09-22 v2
Abstract
We study the XXZ Heisenberg model in a staggered magnetic field using the HOTRG tensor renormalization method. Built into the tensor representation of the XXZ model is the U(1) symmetry, which is systematically maintained at each renormalization step. We determine the phase diagram of the model from the low lying spectrum, and from the finite size dependence of the spectrum we extract scaling dimensions, which are compared to predictions of low energy field theory.
Cite
@article{arxiv.2006.07306,
title = {Luttinger liquid parameters from tensor network data},
author = {Michael Weyrauch and Mykhailo V. Rakov},
journal= {arXiv preprint arXiv:2006.07306},
year = {2020}
}
Comments
7 pages, 7 multi-panel figures, 1 table in Version 1